D.
They break down dead organisms.
D CHLOROPHYAT NOT THE OTHER ONES
Answer: B Meiosis is followed by fertilization: the union of gametes to create a diploid zygote.
Explanation: Fertilization does enhance genetic variation, but not of daughter cells. It enhances genetic variation in offspring. That means two parents could have four children with a variety of traits, such as different eye color or different heights. Meiosis enhances genetic variation through the reduction of chromosomes number, crossing over, and independent and random assortment of chromosomes.
The content of vaccine varies from vaccine to vaccine but it has some live form of the disease in the vaccine
Vaccine work by injecting a small amount of virus in the blood stream along some other agent which causes the body to produce antibodies which fight the infection
The school going kids receive vaccine because their body is no immunity and likely to be a carrier of diseases and spread them.
